In front of a sparse crowd of 2,992 at Cleveland Stadium, Indians starter Steve Dunning hits a grand slam off A’s right-hander Diego Segui in the bottom of the second inning in Cleveland’s 7-5 victory over Oakland. It will be 37 years before another American League pitcher accomplishes the feat when Felix Hernandez of the Mariners does it against the Mets in 2008.

In Game 3 of the World Series, Dave McNally goes deep with the bases loaded in the bottom of the sixth inning off the Reds right-hander Wayne Granger, becoming the first pitcher in World Series history to hit a grand slam. The Orioles’ pitcher’s offensive output contributes to Baltimore’s 9-3 victory over Cincinnati, and gives them a commanding 3-0 game advantage in the seven-game series.

Joining Jeremy Hermida (Marlins, 2005) and Bill Duggleby (Phillies, 1898), Kevin Kouzmanoff becomes the third player in major league history to hit a grand slam in his first career at bat. The Indians’ 25-year-old DH is the first person to accomplish the feat on the first pitch he ever sees in the big leagues.

Rod Kanehl, appearing as a pinch-hitter, hits the first grand slam in Mets history, going deep off Bobby Shantz in the eight inning of the team’s 10-3 victory ov St. Louis at the Polo Grounds. Kanehl’s shot comes in the 79th game of the franchise’s existence.

In an inter-league contest against the Mets at Shea Stadium, Mariners’ right-hander Felix Hernandez becomes the first pitcher in the 31-year history of the franchise to hit a home run. The homer, which comes off fellow Venezuela ace Johan Santana, is also the first grand slam hit by an American League pitcher since Steve Dunning of the Indians homered off A’s moundsman Diego Segui in 1971.